S71924 CB/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71924 CB/P4A
Basic Information
System of measurement
Metric
Weight
1.31 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
120 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
165 mm
Outside diameter tolerance
-0.01mm to 0
Width
22 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
8.731 mm
Ball quantity
41
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
6075 lbf
Radial static load rating
6862 lbf
Limiting speed
10 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 1978.41
/ each
In Stock
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S71924 CB/P4A Bearing Product Overview & Core Advantages
The S71924 CB/P4A is a precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. This single-row bearing features a 15° contact angle and is supplied with a preload, making it ideal for setups requiring high stiffness and minimal axial/radial deflection under load. Its P4 (ABEC-7) tolerance class ensures superior running accuracy, while its sealed and lubricated design provides reliable, long-term performance in high-speed and precision environments.
S71924 CB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S71924 | Denotes the bearing series and size (120mm bore, 165mm OD, 22mm width) |
| CB | Specifies a specific contact angle (15°) and preload level for high rigidity. |
| P4A | Indicates the tolerance class P4 (ABEC-7), signifying very high precision for running accuracy and dimensional stability. |
S71924 CB/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The 15° contact angle and applied preload work in conjunction to deliver exceptional system stiffness, critical for minimizing deflection under combined loads (radial and axial). The P4 precision ensures smooth, vibration-free operation.
- Optimized for High-Speed Operation: The phenolic cage is lightweight and robust, contributing to lower inertial forces and enabling a high limiting speed of 10,000 rpm. This makes it a true high-speed bearing.
- Sealed and Lubricated for Reliability: As a sealed bearing, it is protected from contaminants. It comes pre-lubricated, offering a maintenance-free solution within its specified temperature range of -30°C to 110°C.
- Superior Load Capacity: With a dynamic load rating of 6075 lbf and a static load rating of 6862 lbf, it is engineered to handle significant loads with a long operational life.
S71924 CB/P4A Bearing Typical Application Areas
This bearing is ideally suited for high-performance machinery where precision, speed, and rigidity are paramount. Key applications include:
- Machine Tool Spindles
- High-Frequency Motors and Spindles
- Precision Grinding Equipment
- Robotic Drives and Actuators
- Medical and Dental Equipment
